CN101013773B - Portable device compact antenna - Google Patents
Portable device compact antenna Download PDFInfo
- Publication number
- CN101013773B CN101013773B CN2007100014860A CN200710001486A CN101013773B CN 101013773 B CN101013773 B CN 101013773B CN 2007100014860 A CN2007100014860 A CN 2007100014860A CN 200710001486 A CN200710001486 A CN 200710001486A CN 101013773 B CN101013773 B CN 101013773B
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- arm
- antenna
- frequency band
- wave band
- wire element
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Classifications
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
- H01Q1/244—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas extendable from a housing along a given path
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01Q—ANTENNAS, i.e. RADIO AERIALS
- H01Q1/00—Details of, or arrangements associated with, antennas
- H01Q1/12—Supports; Mounting means
- H01Q1/22—Supports; Mounting means by structural association with other equipment or articles
- H01Q1/24—Supports; Mounting means by structural association with other equipment or articles with receiving set
- H01Q1/241—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM
- H01Q1/242—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use
- H01Q1/243—Supports; Mounting means by structural association with other equipment or articles with receiving set used in mobile communications, e.g. GSM specially adapted for hand-held use with built-in antennas
Abstract
The present invention relates to a portable compact antenna comprising a first radiating element of the dipole type, operating in a first frequency band and formed by a first and at least one second conductive arm supplied differentially, the first arm, called cold arm, forming at least one cover for an electronic card wherein the second arm, called hot arm, is extended by a conductive wire element, the length of the assembly formed by the first arm, the second arm and the wire element being chosen to provide an operation in a second frequency band.
Description
Technical field
The present invention relates to a kind of portable compact antenna; Relate more specifically to such antenna; This antenna is designed to received television signal, particularly such as pocket computer, PDA (personal assistant) or need antenna to come the reception of the digital signal on the mancarried electronic aid of any other similar devices of receiving electromagnetic signals.
Background technology
On current accessory market, existence can directly receive the equipment part of the signal of digital terrestrial television (TNT) on laptop computer.The reception of the digital terrestrial television signals on the laptop computer can be benefited from said computer and be used for digital image decoding, particularly with the computing capability of the digital image stream of MPEG2 or MPEG4 form decoding.This equipment is the most often with the sold-in of unit with two interfaces, these two interfaces promptly: a RF (radio frequency) radio interface is used to be connected to inside or outside VHF-UHF antenna; And USB interface, be used to be connected to computer.
Current at the equipment on the market generally by constituting such as the stand-alone antenna that is installed in the whiplike or loop aerial on the unit that has USB connector.
In No. the 05 51009, the french patent application of submitting on April 20th, 2005, the applicant has proposed a kind of broad-band antenna of compactness, and it covers whole UHF wave band, and is made up of dipole-type antenna.This antenna with particularly can be associated through the electronic cards of using USB type connector to be connected to portable equipment.
More particularly, the antenna of in No. the 05 51009, french patent application, describing comprises first and second conductive arms that provided differently, and one of said arm that is called as the first arm forms at least one shell of electronic cards.More particularly, the first arm has the form of box, comprises that the electronic cards of the Signal Processing circuit that is received by dipole-type antenna is inserted in the said box.These circuit often are connected to the USB type connector that makes it possible to be connected to laptop computer or any other similar devices.
The solution that in present patent application, proposes covers whole UHF wave band.But; In order to use such product that the wideest possible covering is provided; Importantly: except UHF wave band (470-862MHz); Also can receive VHF-III wave band (174-225...230MHz) at least, in said VHF-III wave band, multiplexed such as Germany or more gondola country's continuation broadcast figures.
Summary of the invention
Therefore, the present invention relates to a kind of portable compact antenna that can satisfy this requirement.
Portable compact antenna according to the present invention comprises first radiant element of dipole-type; It is operated in first frequency band; And form by first conductive arm that is provided and at least one second conductive arm differently; The first arm that is called as cold arm forms at least one shell of electronic cards, it is characterized in that second arm that is called as hot arm extends through wire element (wire element); The length of the assembly that selection is formed by the first arm, second arm and wire element is so that be provided at the operation in second frequency band.
According to a characteristic of the present invention, the length of said assembly equals λ
2/ (2 * (1+ α)), wherein, λ
2Be the wavelength at the centre frequency place of second frequency band, α is the coefficient between 0 and 1.Preferably, α is the coefficient between 0.15 and 0.2.The theoretical resonance frequency that this coefficient is used for adjusting antenna by this way with respect to frequency of utilization is to obtain impedance matching.
According to a preferred embodiment of the present invention, first frequency band is the UHF wave band, and second frequency band is the VHF wave band, be preferably the VHF-III wave band.
For the operation on the UHF wave band, each has the λ of equaling first and second arms
1/ 4 length, wherein, λ
1Be at first frequency band, be the wavelength at the centre frequency place of UHF wave band.
According to an embodiment, in hot arm, wire element is provided.According to another embodiment, through with the sleeve pipe of hot arm one in scalable part form said wire element.
And in order to obtain the antenna with diversity operation, first radiant element is included in two second arms that the end rotation is installed of the first arm, and each second arm extends through wire element.
Description of drawings
When the description of reading different embodiment, other features and advantages of the present invention will manifest, and said explanation is to carry out with reference to appended figure in appendix, wherein:
Fig. 1 is the general perspective with the antenna of describing in No. the 05 51009, the French Patent (FRP) of applicant name.
Fig. 2 is the general perspective according to first embodiment of antenna of the present invention.
Fig. 3 illustrates the figure of formation according to the length of the different elements of antenna of the present invention.
Fig. 4 is illustrated in the real part of impedance and the imaginary part of antenna on VHF and the UHF frequency band, that have the size that in Fig. 3, provides.
Fig. 5 illustrates two impedance matching curves, and one is the S11 response of not using the antenna of impedance matching network, and another is to use the S11 response of the antenna of impedance matching network.
Fig. 6 is that the summary of impedance matching network that is used to obtain the result of Fig. 5 is represented.
Fig. 7 is the curve that the loss of impedance matching network is shown.
Fig. 8 is the curve that is illustrated in the antenna gain in VHF and the UHF wave band.
Fig. 9 is the curve that is illustrated in the antenna efficiency in VHF and the UHF wave band.
Figure 10 illustrates through respectively the radiation diagram in UHF and VHF wave band of simulation according to the antenna acquisition of Fig. 3 and Fig. 4.
Figure 11 representes according to the general perspective of another embodiment of antenna of the present invention.
Figure 12 is that the general perspective of the part of antenna is according to another embodiment of the present invention represented.
Figure 13 illustrates real part of impedance and the analog result of imaginary part of the antenna of the Figure 12 that has or do not have groove (slot).
Figure 14 roughly illustrates the different azimuth of wire element of the antenna of Fig. 2.
Figure 15 illustrates the impedance matching curve of the different embodiment of Figure 14.
Figure 16 is the schematic illustration according to an embodiment of the invention that makes it possible to obtain the branch collection.
Figure 17 is that the summary of the electronic cards used with antenna according to the present invention is represented.
In order to simplify description, components identical has identical drawing reference numeral in the accompanying drawings.
Embodiment
With reference to Fig. 1, at first will describe according to embodiment with the dipole-type antenna of No. the 05 51009, the french patent application of applicant name, it is used on laptop computer or the similar devices and receives terrestrial DTV.
As shown in Figure 1, the hinge area 3 that one of second conductive arm, 2, two arms that this dipole-type antenna comprises first conductive arm 1 that also is called as cold arm and also is called as hot arm end through being positioned at each arm is located is connected to each other.
More particularly, arm 1 obviously has the shape that particularly can admit the box of electronic cards.Said box has the part 1a of obvious rectangular form, and it extends through the sweep 1b that launches gradually, makes little by little emittance, and this has improved the impedance matching on broadband more.The length of arm 1 obviously equals λ
1/ 4, wherein, λ
1It is wavelength at the center frequency of operation place.Therefore, for the UHF wave band (470 and 862MHz between frequency band) in operation, the length of arm 1 is near 112mm.
As shown in Figure 1, said antenna comprises around axle or sells 3 and second arm 2 that rotation is installed, said axle or to sell 3 also be said antenna to signal processing circuit, promptly to the tie point of the unshowned electronic cards that is inserted into the box that is formed by arm 1.Carry out the electrical connection of antenna through metal twisted wire (strand) (for example coaxial or analogous cable), and rotating shaft is by constituting for the relative material transparent of electromagnetic wave.
As shown in Figure 1, can have around pin 3 and hinged arm 2 and obviously equal λ
1/ 4 length.Arm 2 also has crooked profile, and followed makes on make position, can it be folded with respect to arm 1 fully and goes back along with flat rectangle part.With respect to arm 1 and rotation is installed on 3, this makes it possible to change the orientation of arm 2, so that optimize the reception of TV signal with arm 2.
Antenna shown in Figure 1 is determined size so that in the UHF wave band, work.But; In order to guarantee the wideest possible commercial coverage; Institute is interested to be: such antenna can also receive VHF frequency band, particularly VHF-III frequency band (174-225...230MHz) except the UHF frequency band; Wherein in said VHF-III frequency band, multiplexed such as Germany or more gondola country's continuation broadcast figures.
Therefore.On Fig. 2, with antenna according to the present invention first embodiment is shown, said antenna can be worked in UHF and VHF wave band, as will explaining in more detail below.Therefore, on the position of pin 3 (level), proceed to the connection of signal processing circuit.
As shown in Figure 2, antenna according to the present invention comprises the first arm 1 or cold arm, and arm 1 that kind of the antenna of its image pattern 1 has the shape of box.This arm 1 extends through arm 2 or hot arm, and said arm 2 or hot arm are connected to turning arm 1 through pin or axle 3.
According to the present invention and as shown in Figure 2, hot arm 2 extends through wire element or twisted wire 4.The assembly that is made up of arm 1, arm 2 and wire element 4 is by electric conducting material, metal or can constitute by metallized material preferably.
According to the present invention and as the figure with reference to Fig. 3 explains in more detail; The total length of the assembly that selection is formed by arm 1, arm 2 and wire element 4, be electrical length, so that allow the impedance matching of the antenna in VHF-III (174-230MHz) and UHF (470-862MHz) wave band.Therefore, total length obviously equals 0.5 * λ
2/ (1+ α), wherein, λ
2It is wavelength at the centre frequency place of VHF-III wave band; α be between 0 and 1, be preferably the coefficient between 0.15 and 0.2; This coefficient is used for adjusting with respect to frequency of utilization the theoretical resonance frequency of antenna; So that its impedance matching can be provided, as will explaining in more detail below.In order to receive the UHF wave band, as top said with reference to Fig. 1, arm 1 has obvious equal lengths L1 and L2 with arm 2, makes
And
Wherein, λ
1It is the wavelength at the centre frequency place of UHF wave band.Therefore, for the center UHF frequency of 666MHz, each arm 1 of said dipole and 2 length obviously equal 11cm.
In order to guarantee the operation in the VHF wave band, as shown in Figure 3, the total length of the assembly that is made up of arm 1, arm 2 and wire element 4 equals about λ
2/ 2 (2 * (1+ α)), wherein λ
2It is wavelength at the centre frequency place of VHF wave band.Preferably, α is between 0.15 and 0.2.This means in the frequency slightly higher (i.e.
) and upward antenna is carried out impedance matching than centre frequency.In fact, this skew makes it possible to when keeping good efficiencies, on operating frequency, antenna carried out impedance matching.In fact, as shown in Figure 4, the impedance that antenna demonstrated when resonance, imaginary part be 0 o'clock for high.This impedance has about 1000 ohm value.Therefore, be difficult to the load impedance on 50 or 75 ohm of magnitudes (order) is for example mated antenna.In order to obtain lower antenna impedance, might search for to be positioned at the low operating frequency on the resonance frequency.But, in order to reduce the size of wire element, operational antennas under resonance frequency more preferably; This is why resonance frequency to be chosen as greater than operating frequency so that reduce the reason of antenna size.
Therefore; As shown in Figure 3; The length of wire element 4 equals
therefore; For operating frequency in the VHF of F2=200MHz wave band and alpha=0.175, obtain the wire element length of about 41cm.
For the foregoing description, in the VHF wave band, can antenna be regarded as asymmetric dipole.And on the UHF frequency, the electrical impedance plane of being taken to hot arm (being arm 2) edge by wire element is equal to the open circuit plane, and is therefore quite transparent for the UHF frequency.Through using above-mentioned design rule, very little for the operation interference of antenna in the UHF wave band at the terminal increase of thermal element plain conductor element.
With reference to Fig. 5-10, use the analog result that obtains according to antenna of the present invention as stated with describing.Utilize the IE3D software of Zeland to carry out the antenna simulation.Use 4.9 * 10
7The thickness of conductance (S/m) and 35 microns defines the material that is used to simulate.The optimization that the ADS software of use Agilent Technologies comes the impedance matching network of execution graph 6.
Fig. 5 shows two impedance matching curves, and one is not use impedance matching network and the S11 response of the antenna of simulating, and another is to use the S11 response of the antenna of simulating such as the impedance matching network of impedance matching network shown in Figure 6.In shown embodiment, this impedance matching network is made up of the impedance Z with value Zc=75 ohm.It is included in the self-impedance L1 that is installed in series between antenna A and the impedance Z.Self-impedance L1 has the value of 20nH.This impedance matching network allow to VHF wave band and UHF wave band the two, 75 ohm are carried out impedance matching.Fig. 5 shows the improvement of the S11 response of on these two VHF and UHF frequency band, being made by impedance matching network.Therefore, the VHF frequency band (correspondingly, the S11 level (level) in UHF) is better than-0.7dB (correspondingly ,-4dB), mark (m3, m7, m10 and m12) specifies in the S11 level of utilizing its impedance matching network to obtain after antenna is optimized.
And, as shown in Figure 7, the loss of impedance matching network in the UHF wave band (promptly 470 and 862MHz between) be 2.5dB, and in the VHF wave band (promptly 174 and 230MHz between) be 8dB.
The Fig. 8 that is illustrated in the antenna gain on these two wave bands illustrates: VHF wave band gain is between-6dB and 1.8dB, and the gain of UHF wave band is between 0.5dB and 3dB.
And, as being illustrated in the shown in Figure 9 of two antenna efficiencies in the wave band, antenna has at least 20% efficient in the VHF wave band, and in the UHF wave band, has at least 58% efficient.
In addition, Figure 10 shows the simulation radiation diagram such as antenna shown in Figure 2 in UHF and VHF wave band respectively.These accurate figure of omnidirectional confirm that said antenna has the dipole-type behavior under two kinds of situation.
The different versions of embodiment will be described now.Therefore, Figure 11 shows first kind of version, wherein, constitutes wire element by contractable element 4a, 4b, 4c.One of said element 4a forms and is fixed on the metal sleeve 4a on the hot arm 2, and other two element 4a, 4b of forming twisted wire can be inserted into wherein.This makes it possible to only when needs VHF wave band receives, come antenna is carried out impedance matching through the use twisted wire.In this case, the UHF operation is obviously identical, brings the open circuit plane for the end of this arm because surpass the length of the contractable element of hot arm, and this makes contractable element more transparent.And the less thickness that is positioned at the locational hot arm of metal sleeve 4a increases can not make UHF operation variation, moreover trends towards increasing its impedance matching wave band owing to those skilled in the art will know that the volume increase of dipole antenna, so all the more so.
In Figure 12, show another embodiment of the present invention.In this case, hot arm 2 is characterised in that groove 2 ', immediately following insert wire element 4 thereafter.This embodiment can reduce the length of wire element.In fact, as real part and imaginary part shown in Figure 13 of the antenna impedance that has or do not have groove is shown, can finds out: increase that 0.2mm is wide to reduce 14MHz with the long groove of 9cm with resonance frequency.In fact, on the resonance frequency that equates, the length of conductive wire element reduces 4cm.
Ratio between the length of groove 2a and the decrease of wire element (reduction) depends on that aerial conductive wire element and wire element are along the relative wavelength between the extension of arm 2.
With reference to Figure 14 and 15, the position that will describe conductive wire element 4 now is with respect to the hot arm 2 of antenna and the influence that can have.In fact, conductive wire element 4 is not necessarily to strain in the extension of hot arm 2.Like expression shown in Figure 15 for the S11 impedance matching of three position V1, V2 and V3 shown in Figure 4, can find out: antenna keeps complete acceptable behavior in VHF and UHF wave band, and with the location independent of wire element 4.Therefore, allow for given receive channel, the impedance matching of antenna is obtained certain flexibility in wire element this modification in shape.
With reference to Figure 16, the specific embodiment of the said antenna of the antenna system that allow to obtain to have the branch collection will be described now, said antenna system can be operated in UHF wave band and VHF wave band.In this case, cold conductive arm 1 is connected to two hot arms, is arm 2 and 2a.Embodiment as Fig. 2 is such, and each hot arm extends through conductive strands (4,4 '), and in shown embodiment, said conductive strands (4,4 ') is installed in the non-conductive sleeve pipe 5 that covers these two twisted wires 4 and 4 '.This specific embodiment makes it possible to form ring with the suspension antenna.As as described in the antenna of Fig. 2, calculate the size of the different elements of this antenna system.
And with reference to Figure 17, with the example of describing electronic cards, it can use with antenna according to the present invention, as described in Fig. 2.This electronic cards is designed to be inserted into and comprises as in shell or the box as the cold arm 1 of box element.This electronic cards 10 comprises LNA amplifier 11, and the coaxial cable of antenna is connected to said LNA amplifier 11 on the position of hinge 3.LNA 11 is connected to and handles the two the tuner that is merged 12 of VHF wave band and UHF wave band.Tuner 12 is connected to demodulator 13, and the output of demodulator 13 is connected to usb 14, itself is connected to USB connector 15.Therefore, might utilize this system that the USB that antenna is connected to laptop computer or any other display element is imported, this especially makes it possible on computer, PDA or other portable equipments, receive terrestrial DTV.
Claims (9)
1. portable compact antenna; First radiant element that comprises dipole-type; It is operated in first frequency band, and is formed by the first arm that is provided (1) and at least one second conductive arm (2) differently, and the first arm that is called as cold arm forms at least one shell of electronic cards; It is characterized in that second arm that is called as hot arm is through conductive wire element (4; 4a, 4b 4c) extends, and the length of the assembly of selecting to be formed by the first arm, second arm and wire element is so that be provided at the operation in second frequency band.
2. according to the antenna of claim 1, it is characterized in that the length of said assembly equals λ
2/ (2 * (1+ α)), wherein, λ
2Be the wavelength at the centre frequency place of second frequency band, α is the coefficient between 0 and 1.
3. according to the antenna of claim 2, it is characterized in that α is between 0.15 and 0.2.
4. according to the antenna of one of claim 1-3, it is characterized in that first frequency band is the UHF wave band, second frequency band is the VHF wave band.
5. according to the antenna of claim 4, it is characterized in that said VHF frequency band is the VHF-III wave band.
6. according to the antenna of claim 1, it is characterized in that, be close to the groove (2 ') that in hot arm (2), provides and insert wire element (4).
7. according to the antenna of claim 1, it is characterized in that, through with the integrated sleeve pipe (4a) of hot arm (2) in contractable element (4a, 4b 4c) form wire element.
8. according to the antenna of claim 1, it is characterized in that first radiant element is included in two second arms (2,2 ') that terminal rotation is installed of the first arm, each second arm extends through wire element (4,4 ').
9. according to the antenna of claim 1, it is characterized in that each has the λ of equaling first and second arms
1/ 4 length, wherein, λ
1It is wavelength at the centre frequency place of first frequency band.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FR0650153 | 2006-01-17 | ||
| FR0650153A FR2896341A1 (en) | 2006-01-17 | 2006-01-17 | PORTABLE COMPACT ANTENNA |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101013773A CN101013773A (en) | 2007-08-08 |
| CN101013773B true CN101013773B (en) | 2012-06-20 |
Family
ID=37102530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2007100014860A Active CN101013773B (en) | 2006-01-17 | 2007-01-10 | Portable device compact antenna |
Country Status (7)
| Country | Link |
|---|---|
| US (1) | US7642968B2 (en) |
| EP (1) | EP1811600B1 (en) |
| JP (1) | JP2007195178A (en) |
| CN (1) | CN101013773B (en) |
| DE (1) | DE602006002483D1 (en) |
| FR (1) | FR2896341A1 (en) |
| TW (1) | TWI419410B (en) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2889362B1 (en) * | 2005-08-01 | 2007-10-19 | Thomson Licensing Sas | DIPOLE TYPE DIVERSITY ANTENNA SYSTEM |
| CN102341955A (en) * | 2009-01-07 | 2012-02-01 | 奥迪欧沃克斯公司 | Laptop computer antenna device |
| US20100225561A1 (en) * | 2009-03-04 | 2010-09-09 | Azurewave Technologies, Inc. | Electrical connector with a television signal receiving function |
| TWI390942B (en) * | 2009-05-26 | 2013-03-21 | Htc Corp | Mobile communication device |
| US20140312834A1 (en) * | 2013-04-20 | 2014-10-23 | Yuji Tanabe | Wearable impact measurement device with wireless power and data communication |
| US10141635B2 (en) * | 2016-11-14 | 2018-11-27 | Antwave Technology Limited | Systems, apparatus, and methods to optimize antenna performance |
| CN109037952A (en) * | 2018-07-30 | 2018-12-18 | 武汉中元通信股份有限公司 | A kind of multiband aerial |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313119A (en) * | 1980-04-18 | 1982-01-26 | Motorola, Inc. | Dual mode transceiver antenna |
| CN1217091A (en) * | 1996-04-30 | 1999-05-19 | 夸尔柯姆股份有限公司 | Dual band antenna |
| US6282433B1 (en) * | 1999-04-14 | 2001-08-28 | Ericsson Inc. | Personal communication terminal with a slot antenna |
| US6573868B2 (en) * | 2001-02-28 | 2003-06-03 | 3Com Corporation | Retractable antenna for electronic devices |
| US6870513B2 (en) * | 2001-08-23 | 2005-03-22 | Asustek Computer Inc. | Antenna module |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS583405B2 (en) * | 1976-09-24 | 1983-01-21 | 日本電気株式会社 | Antenna for small radio equipment |
| SE511131C2 (en) * | 1997-11-06 | 1999-08-09 | Ericsson Telefon Ab L M | Portable electronic communication device with multi-band antenna system |
| FR2818018B1 (en) * | 2000-12-12 | 2003-02-14 | Thomson Csf | RADIANT GALVANIC INSULATION ANTENNA |
| JP2004201108A (en) * | 2002-12-19 | 2004-07-15 | Sony Corp | High frequency signal receiver |
| JP4053418B2 (en) * | 2002-12-26 | 2008-02-27 | 三菱電機株式会社 | Antenna device and mobile phone |
| US6842149B2 (en) * | 2003-01-24 | 2005-01-11 | Solectron Corporation | Combined mechanical package shield antenna |
| JP2005020228A (en) * | 2003-06-25 | 2005-01-20 | Sony Ericsson Mobilecommunications Japan Inc | Antenna equipment |
| JP2005176302A (en) * | 2003-09-26 | 2005-06-30 | Nec Access Technica Ltd | Antenna assembly of portable terminal, and wireless installation capable of receiving broadcast wave |
-
2006
- 2006-01-17 FR FR0650153A patent/FR2896341A1/en active Pending
- 2006-12-29 DE DE602006002483T patent/DE602006002483D1/en active Active
- 2006-12-29 EP EP06127336A patent/EP1811600B1/en active Active
-
2007
- 2007-01-10 CN CN2007100014860A patent/CN101013773B/en active Active
- 2007-01-12 TW TW096101173A patent/TWI419410B/en active
- 2007-01-15 JP JP2007005934A patent/JP2007195178A/en active Pending
- 2007-01-16 US US11/653,612 patent/US7642968B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4313119A (en) * | 1980-04-18 | 1982-01-26 | Motorola, Inc. | Dual mode transceiver antenna |
| CN1217091A (en) * | 1996-04-30 | 1999-05-19 | 夸尔柯姆股份有限公司 | Dual band antenna |
| US6282433B1 (en) * | 1999-04-14 | 2001-08-28 | Ericsson Inc. | Personal communication terminal with a slot antenna |
| US6573868B2 (en) * | 2001-02-28 | 2003-06-03 | 3Com Corporation | Retractable antenna for electronic devices |
| US6870513B2 (en) * | 2001-08-23 | 2005-03-22 | Asustek Computer Inc. | Antenna module |
Also Published As
| Publication number | Publication date |
|---|---|
| EP1811600A1 (en) | 2007-07-25 |
| US20070164914A1 (en) | 2007-07-19 |
| FR2896341A1 (en) | 2007-07-20 |
| US7642968B2 (en) | 2010-01-05 |
| TWI419410B (en) | 2013-12-11 |
| CN101013773A (en) | 2007-08-08 |
| EP1811600B1 (en) | 2008-08-27 |
| JP2007195178A (en) | 2007-08-02 |
| TW200729618A (en) | 2007-08-01 |
| DE602006002483D1 (en) | 2008-10-09 |
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